package utils;

import java.io.UnsupportedEncodingException;
import java.security.MessageDigest;

/**
 * 功能描述:
 *
 * @author liping(lpaidd50@gmail.com)
 * @version v1.0
 * @date 2016/8/8
 */
public class MD5 {
	/**
	 * MD5编码
	 * @param origin 原始字符串
	 * @return 经过MD5加密之后的结果
	 */
	public static String MD5Encode(String input) {
		byte[] source;
		try {
			//Get byte according by specified coding.
			source = input.getBytes("UTF-8");
		} catch (UnsupportedEncodingException e) {
			source = input.getBytes();
		}
		String result = null;
		char hexDigits[] = {	'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd',
				'e', 'f' };
		try {
			MessageDigest md = MessageDigest.getInstance("MD5");
			md.update(source);
			//The result should be one 128 integer
			byte temp[] = md.digest();
			char str[] = new char[16 * 2];
			int k = 0;
			for (int i = 0; i < 16; i++) {
				byte byte0 = temp[i];
				str[k++] = hexDigits[byte0 >>> 4 & 0xf];
				str[k++] = hexDigits[byte0 & 0xf];
			}
			result = new String(str);
		} catch (Exception e) {
			e.printStackTrace();
		}
		return result;
	}
}
